<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <script type="text/javascript">
    	var price = 5;
    	var priceCopy = price;

    	priceCopy = 10;
    	console.log(price, priceCopy);


    	var color = ['红', '黄'];
    	var colorCopy = color;

    	colorCopy.push('蓝');
    	console.log(color, colorCopy);



	</script>
	
	<p>请用 f12 查看此 html 的script标签</p>
</body>
</html>